I thought af came 4 days early (10dpo) I had heavy bleeding with a clot for a day then light spotting for the next two days. Recently, I've been feeling a little sick to my stomach, extremely tired and dizzy but no other pregnancy symptoms. I also smoke and I've noticed that every time I smoke I get extremely dizzy and sick to my stomach. Like to the point where I feel like I'm going to pass out or throw up. At first I thought it was in my head but now idk what to think.